I ran one of these for about a year and a half. It is by far the best pivotal seat I've used, and I've used a lot. This slim seat is more comfortable than virtually all other fat seats. Of course that means it is much more comfortable than any other slim seats. It's nice and wide so you have a nice place to sit. Also, the little "lip" at the back that creates the ergonomic shape feels great and helps keep you on the seat, rather than other seats where you just slide off the back. Also, because this is a slim seat, it is easy to find the bolt inside the seat, which always tends to be a struggle with fat pivotal seats. The cover is so soft that you might think you'll tear it, but it is actually very durable.
This seat is more centered than most other pivotal seats, which tend to be very nose-forward. All those other seats look very awkward, but this seat looks nice and natural. It also makes the nose a bit stiffer, but it's still pretty flexy.
I have since moved on to Tripod seats, which are much stiffer and cleaner than pivotal, but this will always be my go-to pivotal seat. I highly recommend it.